implement zesa currency swap feature

src/main/java/zw/qantra/tm/domain/models/Currency.java

@@ -13,4 +13,6 @@ public class Currency extends BaseEntity {
     private String isoCode;
     private String name;
     private String displayName;
+    private String bankRate;
+    private String forecastRate;
 }

src/main/java/zw/qantra/tm/domain/models/Provider.java

@@ -2,8 +2,11 @@ package zw.qantra.tm.domain.models;
 
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
+import jakarta.persistence.EnumType;
+import jakarta.persistence.Enumerated;
 import lombok.*;
 import org.hibernate.annotations.SQLRestriction;
+import zw.qantra.tm.domain.enums.CurrencyType;
 
 
 @Entity
@@ -19,6 +22,8 @@ public class Provider extends BaseEntity {
     private String name;
     private String description;
     private String externalId;
+    @Enumerated(EnumType.STRING)
+    private CurrencyType currency;
     private String image;
     private String category;
     private String accountFieldName;

src/main/java/zw/qantra/tm/domain/models/Transaction.java

@@ -51,6 +51,7 @@ public class Transaction extends BaseEntity {
     private String creditAccount;
     @Enumerated(EnumType.STRING)
     private CurrencyType creditCurrency;
+    private BigDecimal creditAmount;
     private String creditName;
     private String creditCard;
     private String creditRef;